A display panel includes a first substrate, a second substrate, signal lines, sub-pixels, and at least one thickness adjusting layer. The front portion is insertable in an axial direction into the aperture, and the back portion is configured to prevent passage through the aperture. When a short occurs, the single pixel may be separated from the circuit by the fuse, avoiding the possibility that an entire row of pixels may be adversely affected by the short associated with one single pixel along a row. The mount is secured to either a striker or a seat headrest in the rear of the vehicle.